The invention discloses an electrical fire monitoring system, comprising a human-machine operating module, a sensor set, a video collection module, a central processing unit, a control command preview module, a prediction analysis module, an expert estimation module, a physical model analog simulation analysis module, a simulation analysis module, and a virtual sensor. The use of multi-mode inputting manner provides great convenience for use; the input of each command is self-provided with authentication information, limiting system control rights is guaranteed, and the input of every control command is traceable; before confirmation of the output of each command, previewing the control command is required, and therefore, output errors of the control command are well avoided and every control command is visualized; real-time monitoring is provided for electrical equipment current and temperature, surroundings and the like, data estimation and analysis functions are self-provided to the system, and the technical problem that electrical fire detection is low in efficiency and poor in detection result is effectively solved; analog simulation analysis can be carried out for late development conditions of electrical equipment according to detected data.